[Event "IBM"]
[Site "Amsterdam"]
[Date "1961.??.??"]
[Round "2"]
[White "Wade, Robert Graham"]
[Black "Van den Berg, Carel"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qc2 cxd4 9. cxd4 Nc6 10. e4 Nde7 11. Bb2 Nxd4 12. Qa4+ Nec6 13. Rd1 e5 14. Bb5 O-O 15. Bxc6 bxc6 16. Bxd4 exd4 17. Qxd4 Qa5+ 18. Kf2 Qxa3 19. Ne2 Be6 20. Ra1 Qe7 21. Ra5 Rfd8 22. Qc3 Qc7 23. Rha1 Qxh2 24. Ng3 Qh6 25. Rxa7 Rab8 26. Nf1 Qg5 27. Rc1 h5 28. Ra6 h4 29. Rxc6 h3 30. gxh3 Rb3 31. Qc5 Qh4+ 32. Ke2 Qxh3 33. Qf2 Qh5 34. Ne3 Rb2+ 35. R6c2 Qb5+ 36. Ke1 Rxc2 37. Qxc2 Qa5+ 38. Qc3 Qg5 39. Ke2 Qg3 40. Nd1 Rc8 41. Qxc8+ Bxc8 42. Rxc8+ Kh7 43. Nf2 1/2-1/2